4 Specifications subject to change without notice. IM-40MBDQ-05
INSTALLATION REQUIREMENTS
• Confirm that the ceiling or wall can support the unit’s weight.
• Confirm there is enough room within the false ceiling for
installation and maintenance.
a. The false ceiling should be horizontal and leveled.
• Install the unit in a location within the room that allows uniform
airflow in all directions.
• Do not install the indoor units near a direct source of heat such as
direct sunlight or a heating appliance.
• Allow sufficient space for airflow and unit servicing. See Fig. 7 —
on page 7 for the minimum required distances between the unit and
the walls or ceilings.
• All wiring and refrigerant lines must be at least 3 ft. (1m) away
from all electromagnetic interference (televisions, radios, etc.)
sources. Interference is still possible even if this distance is
maintained.
• Ensure the hanger is strong enough to withstand the unit’s weight.
• If the indoor unit is installed in an unconditioned space,
running for long periods of time when the temperatures are
outside the recommended indoor unit operation ranges, you
are advised to seal all the corners of the indoor unit to prevent
any leakage and add insulation material (1/2 to 3/4 in (10-20
mm)) to the entire surface of the indoor unit to avoid
condensation or heat transfer.
Fig. 4 — Insulation Material
NOTE: Nuisance sweating may occur if the unit is installed
in a high humidity environment with low airflow.
Table 3 — Operating Range
If the unit is installed outside the operating range it is recommended to
install a return air temperature button sensor. See “RETURN AIR
ARRANGEMENT (SIZES 09K-48K ONLY)” on page 10.
NOTE: DO NOT install the indoor or outdoor units in a
location with special environmental conditions. For those
applications, contact your Ductless representative.
OPERATING RANGE
MIN/MAX °F (°C)
Cooling Heating
Indoor DB 63 / 90 (17 / 32) 32 / 86 (0 / 30)
Indoor WB 59 / 84 (15 / 29)
PRODUCT INSTALLATION
• Installation must be performed by an authorized dealer or
specialist. A defective installation can cause water leakage,
electrical shock, or fire.
• The installation must be performed according to the installation
instructions. Improper installation can cause water leakage,
electrical shock, or fire. (In North America, installation must be
performed in accordance with the requirements of NEC or CEC
by authorized personnel only.)
• Contact an authorized service technician for repair or
maintenance of this unit. This appliance must be installed in
accordance with local codes.
• Only use the included accessories, parts, and specified parts for
installation. Using non-standard parts can cause water leakage,
electrical shock, fire, or unit failure.
• Install drainage piping according to the instructions in this
manual. Improper drainage may cause water damage to your
home and property.
• For units that have an auxiliary electric heater, DO NOT install
the unit within 3 feet (1 meter) of any combustible materials.
• DO NOT install the unit in a location that may be exposed to
combustible gas leaks. If combustible gas accumulates around
the unit, it may cause a fire.
• DO NOT turn on the power until all work has been completed.
• When moving or relocating the system, consult experienced
service technicians for the disconnection and re-installation of
the unit.
WA RNING
Securely install the indoor unit on a structure that can sustain its
weight. If the structure is too weak, the unit may fall and cause
personal injury, unit and property damage, or death.
DO NOT install the indoor unit in a bathroom or laundry room as
excessive moisture can short the unit and corrode the wiring.
WARNIN G
Install the indoor and outdoor units, cables and wires at least 3.2 ft
(1m) from televisions or radios to prevent static or image
distortion.
Depending on the appliances, a 3.2 ft (1m) distance may not be
sufficient. If the indoor unit is installed on metal, it must be
electrically grounded.
CAUTION
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